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39 is not prime because 13 and 3 are factors of it. To be prime the number cannot have any factors except itself and 1.

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โˆ™ 2010-07-06 00:34:13
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Q: What number is not an prime number 17 39 23 31?
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Related questions

Is 17 39 23 31 a prime number?

17, 23 and 31 are prime. 39 is not.


Is 17 39 23 31 not a prime number?

17, 23 and 31 are prime. 39 is not.


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51 is not a prime number: 3x17=51


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51 is composite number


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51 = 3 x 17


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What is a prime number above 13?

prime numbers above 13 = 17, 19, 23, 29, 31,...


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7 11 13 17 19 23 29.


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What is the prime factorization of 31 and 34?

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